Across
- 3. quadrilateral with four equal sides and angles
- 5. angle between 0 and 90degrees
- 7. used to construct straight lines
- 8. quadrilateral with equal and parallel sides
- 9. angle that is exactly 90degrees
Down
- 1. lines that never intersect
- 2. line passing through the centre if a circle
- 4. angle that is 180degrees
- 6. angle greater than 90degrees,less than 180degrees